GNU SIP Witch

{{Infobox software

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| developer = GNU Project

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| latest release version = 1.9.15

| latest release date = {{Start date and age|2015|12|13|df=yes/no}}

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| platform = Linux, Mac OS X, BSD, Windows

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| language = C++

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| license = GPL (free software)

| website = {{URL|www.gnu.org/software/sipwitch}}

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GNU SIP Witch is free SIP server software with peer-to-peer capabilities from the GNU Project. It is the GNU implementation of the Session Initiation Protocol (SIP), which is used for the routing of calls.

Availability

SIP Witch is released as free software under the terms of version 3 or later of the GNU General Public License (GPL). It is designed for Linux, macOS, BSD and Windows and planned support for Android.{{Cite web

|author = Dj Walker-Morgan

|publisher = Heise Media UK Ltd.

|title = Peer-to-peer VOIP app GNU SIP Witch reaches version 1.0

|url = http://h-online.com/-1244247

|archiveurl = https://web.archive.org/web/20120515215337/http://www.h-online.com/open/news/item/Peer-to-peer-VOIP-app-GNU-SIP-Witch-reaches-version-1-0-1244247.html

|archivedate = 15 May 2012

|date = 2011-05-17

|accessdate = 2012-06-10

}} In the popular Linux distributions Ubuntu and Fedora it may be installed directly from the standard package sources.{{Cite web|url=http://packages.ubuntu.com/search?sipwitch|title=Ubuntu – Package Search Results -- sipwitch}}{{Cite web |url=https://admin.fedoraproject.org/pkgdb/acls/name/sipwitch |title=Fedora Package Database -- sipwitch |access-date=2011-05-19 |archive-url=https://web.archive.org/web/20130720210426/https://admin.fedoraproject.org/pkgdb/acls/name/sipwitch |archive-date=2013-07-20 |url-status=dead }}

Technology

SIP Witch is written in the programming language C++ and uses the uCommon,{{Cite web |url=http://www.gnutelephony.org/index.php/GNU_uCommon_C%2B%2B |title=GNU uCommon C++ - GNU Telephony |access-date=2011-05-19 |archive-url=https://web.archive.org/web/20111007180843/http://www.gnutelephony.org/index.php/GNU_uCommon_C%2B%2B |archive-date=2011-10-07 |url-status=dead }} eXosip{{Cite web|url=http://savannah.nongnu.org/projects/exosip|title=The eXtended osip library - Summary [Savannah]}} and GNU oSIP{{Cite web|url=https://www.gnu.org/software/osip/|title = The GNU oSIP library - GNU Project - Free Software Foundation (FSF)}} libraries.

Features

The software enables Voice over IP as part of a self-organising Peer-to-peer telephone network.

It supports features like call forwarding, call distribution, call hold, presence information and (text) messages, supports encrypted calls and also enables NAT traversal to establish the peer-to-peer connections.{{cite web

|author = Hans-Joachim Baader

|publisher = Baader&Lindner GbR

|title = GNU SIP Witch erreicht Version 1.0

|url = http://www.pro-linux.de/news/1/17054

|work = Pro-Linux

|date = 2011-05-16

|accessdate = 2011-05-19

}}

History

The SIP Witch is being developed since the 10th of August 2007 by David Sugar within the GNU Telephony project. The first version was 0.1.0. Version 1 was released on May 14, 2011. It is being used as a component of GNU Free Call, which is supposed to be an alternative to Skype.

Sources

External links

[https://www.gnu.org/software/sipwitch/ official Website]

Category:Free VoIP software

SIP Witch